The largest contiguous bands are at 2.3 GHz (100 MHz, band 40) and within the 2.6 GHz (band 38). China also has band 39 (1880-1920 MHz). LTE TDD system is being deployed using 2496-2690 MHz (band 41) in USA. UK Broadband is deploying its LTE TDD system in 124 MHz of spectrum in 3.4-3.6 GHz (band 42).